Reply To: Champion Jl-15 spark plugs?

[NATHAN KILLIAN]

David Stanton wrote:

Is it a JI-15?  (Letter “I”).   The Champion site below calls the JI-15  a #514 in their new numbering system.

Dave

https://www.championautoparts.com/find-my-part/Part-Number-Results.html?part=JI-15

And below is the plug – note at this link, scroll down and they also call it a D-14:

https://www.drivparts.com/part-details.html?brand_code=BBKH&part_number=514&part_name=%7B2%7D

The number on the website for the champion version of the Ji-15 is 514, not 847.  847 was the number for a replacement for the J-8J which was discussed in the forum I started.    The D-14 seems to have the same champion part number as the Ji-15 on the champion website.  The D-14 has the right thread size and gap, but it is a bit cold at a rating of 14.  If you can find a hotter plug, you might be able to prevent excess carbon buildup.

"Outboards seem to multiply exponentially..........I find that for every finished project, there are two more waiting to be completed."